National grocery chain · Retail, Commerce & Consumer
Grocery Chain Improves Forecast Accuracy by 31%
A grocery chain unified demand signals across products, stores, and promotions—connecting forecasts directly to replenishment and allocation decisions.
About the client
A national grocery chain with hundreds of stores, heavy fresh-category exposure, and promotion-driven demand—operating forecasting in per-channel spreadsheets across eighteen source systems.
The challenge
Forecasting ran per channel in spreadsheets, blind to promotions, local events, and substitution effects. Stockouts and fresh-category waste both traced back to the same divided demand picture. Planners rebuilt numbers manually every period, forecasts disagreed between commercial and supply teams, and promotion lift was a post-mortem debate rather than a modeled input.
The engagement
Global AI Nexus unified eighteen source systems into a demand intelligence layer with models per product-store-behavior segment, and drivers surfaced so planners could trust or challenge each forecast.
Forecasts publish straight into replenishment and allocation workflows with exception queues for the anomalies that matter.
Promotion calendars became first-class model inputs: lift effects learned from past campaigns now feed the forecast, ending the promotion-blind baseline and the post-campaign arguments about what actually happened.
In their words
“We used to argue about whose spreadsheet was right. Now we argue about which exceptions to act on. That is a much better argument for a planning team to be having.”
Head of Supply Chain Planning, National grocery chain
The results
- 01Forecast accuracy improved 31% against the prior baseline.
- 02Fresh-category waste fell 14% while availability held steady.
- 03Planners review exceptions instead of rebuilding numbers.
- 04Promotion impact now feeds back into the models automatically.
- 05One demand picture serves commercial, supply, and finance—ending the dueling-spreadsheet era.
GAINX systems deployed
The solution systems behind this outcome.
Start with the business objective